Finding the right collaborator, and growing together, is a creative feat. While songwriting duo Kristen Anderson-Lopez and Robert Lopez were writing the iconic songs to "Frozen," they discovered the key ingredient to a successful and lasting collaboration: generosity. Kristen and Robert offer insight on how to be a generous collaborator — from not walking out the door when things get tough, to offering space to play together. Being generous with your collaborator creates an alchemy that is truly magical. For Kristen and Robert, that meant writing songs like "Let It Go" for two of the most successful animated films of all time.  Follow along (with transcript and photos) at sparkandfire.com/frozen Subscribe to the Spark & Fire weekly newsletter for images, stories and creative prompts: http://eepurl.com/hkmyMr See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.